Mariposa County Air Quality at 7:05 A.M. September 1, 2017
Source: Mariposa County

September 1, 2017 - Smoke: A strong high pressure system remains over the area which continue to bring in hotter and drier conditions and light terrain-driven. Expect morning smoke impacts under the inversion in the valleys, then clearing in the afternoon. Wawona, Yosemite West and Ponderosa Basin may see more smoke impacts due to their proximity to the fires. Intensity of smoke will depend on the activity of the fires.

Fire: South Fork: https://inciweb.nwcg.gov/incident/5502/

Empire: https://inciweb.nwcg.gov/incident/5475/

Railroad: https://inciweb.nwcg.gov/incident/5553/

Other: Dense smoke for short periods can aggravate symptoms for sensitive persons without changing 24-hr AQI levels. Note: AQ forecasts below reflect only particulate matter - not ozone.


Source: USDA